note 27686 deleted from function.empty by aidan

Note Submitter: ckluge at friko3 dot onet dot pl ---- There is at least one case where the empty() function is very useful - it is when you have operations on an array. Imagine that you are storing data in an array, adding and unsetting elements - the quick method of checking if anything is left in an array is simply checking if empty($array) is FALSE (note that key_exists() works only if you check for the specific key)